Install Magento Patch

I am trying to install a patch for Magento, but I am getting this error:
"Error! Some required system tools, that are utilized in this sh script, are not installed:
Tool(s) "patch" is(are) missed, please install it(them)."
When I log as root and run:

I am trying to install a patch for Magento, but I am getting this error:
"Error! Some required system tools, that are utilized in this sh script, are not installed:
Tool(s) "patch" is(are) missed, please install it(them)."
When I log as root and run:

Code:

yum install patch

I got that patch-2.6-6.el6.x86_64 is already installed.

How do I solve this?

Click to expand...

Are you able to execute the patch command with the user, you are trying to install the magento patch ?
user@server# patch -v